Albert m



(No'ModeL.) l

-A. lVI'. BURRITT.

. FireHEX'tinguisher. y NQ. 242,879.V Patented June 14,1881.

UNITED STATES PATENT OFFICE.

ALBERT M. BURRITT, OF WATERBRY, CONNECTICUT, ASSIGNOR TO THE A. BURRITT HARDWARE COMPANY, OF SAME PLACE FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 242,879, dated June 14:, 1881.

Application iled April 30, 1881. (No model.) v

To all whom t may concern:

Be it known that I, ALBERT M. BURRITT, ot' Waterbury, in the county of New Haven and State of Connecticut, have invented a new Improvement in Fire-Extinguishers; and I do hereby declare the following, when taken in 4connect-ion with the accompanying drawing and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawing constitutes part of this specification, and represents a longitudinal section.

This invention relates to an improvement in that class of fire-extinguishers which consist of a perforated distributer or rose attached to the end of a water-way, the way being stopped by a plug secured by a fusible connection, or the plugitself of fusible metal, so that as soon as a tire near the distributer shall heat the fusible connection to the required extent the plug may be released, permitting aflow of water to and through the extinguisher to extinguish the lire.

lwith the plug.

In the usual construction the outside of the Walls within which the plug is attached is exposed directly to the heat that is upon the outside,lwhile the Water stands in close contact The result is such an uneven heating of the plug that the water frequently escapes at some point between the plug and the Wall to which it is secured, and which delays, if not entirely prevents, the disconnection of the plug, because the flow of water cools the fusible connection to such an extent that the heat will not act upon it.

To obviate this difficulty and insure a uniform heat upon the plug are theobject of this invention; and. it consists in constructing a chamber in the water-way around the walls within which the plug is secured, so that the heat is communicated through that Waterchamber, the Water serving asa conductor for the heat, and hence is heated to the same or ber C and permit water to stand around it on 55 the outside. D, the plug, preferably made from a cup of thin metal, is soldered to the inside of the plug-socket a, or connected by any suitable material fusible at a low degree ot' heat,

or may be a plug of such fusible material. 6o

When the plug is in the water stands in the chamber C so as to entirely surround the outside ofthe walls ofthe socketa. The heat ofthe fire will'quiokly heat the water in the chamber C to a degree sufcieut to disconnect the plug, 6

and because of this water conductor or surrounding the heat will necessarily be uniform around the socket and produce thedsengagement of the plug at all points at the same instant, and will also avoid the possibility of the 7o sudden ow of cold Water upon the fusible connection, because the water itself is hot.

I claim- The herein-described improvement in reextinguishers, consisting of the perforated dis- 7 5 tributer and ivater-way communicating thereto, combined with the socket between the distributor and water-way, arranged to receive the detachable plug, andthe said water-way constructed to form a chamberaround the said 8o socket, substantially as described.

ALBERT M. BURRIT'I.

Witnesses:

JOHN B. DOHERTY, EUGENE J. Devis. 

